Servo control apparatus
    1.
    发明授权
    Servo control apparatus 失效
    伺服控制装置

    公开(公告)号:US5077507A

    公开(公告)日:1991-12-31

    申请号:US535681

    申请日:1990-06-11

    IPC分类号: G05B19/23 G05B19/4062

    CPC分类号: G05B19/4062 G05B19/232

    摘要: A servo control apparatus comprises an abnormality detection circuit which calculates a difference between the quantity of rotation of a servo motor from a reference point calculated on the basis of an accumulated value of the position feedback and the quantity of rotation of the servo motor from the reference point counted by a rotational detector, and puts out an absolute position abnormality signal when the calculated difference value exceeds a predetermined value.

    摘要翻译: 伺服控制装置包括:异常检测电路,其根据基于位置反馈的累加值计算的参考点和伺服电动机的旋转量与参考值计算伺服电动机的旋转量之间的差异 通过旋转检测器计数点,并且当所计算的差值超过预定值时,输出绝对位置异常信号。

    Absolute position detection apparatus and error compensation methods
therefor
    2.
    发明授权
    Absolute position detection apparatus and error compensation methods therefor 失效
    绝对位置检测装置及其误差补偿方法

    公开(公告)号:US5677686A

    公开(公告)日:1997-10-14

    申请号:US379739

    申请日:1995-01-27

    CPC分类号: H03M1/645 G01D5/2451

    摘要: An absolute position detection apparatus which comprises sine and cosine wave generators for generating one or more sets of sine and cosine waves within a cycle, analog-to-digital converters for converting the incoming sine and cosine waves generated by the sine and cosine wave generators into digital values. An arithmetic unit is used for calculating a compensation for errors including offset, amplitude and phase errors on the basis of the digital values from the analog-to-digital converters. In the apparatus, the arithmetic unit operates on a phase angle from phase angles found by the arithmetic performed prior to or during said error compensations and the digital values from the analog-to-digital converters, whereby a low-priced, highly reliable absolute position detection apparatus can be achieved without the addition of compensation circuits to the hardware.

    摘要翻译: 一种绝对位置检测装置,包括用于在一个周期内产生一组或多组正弦波和余弦波的正弦和余弦波发生器,用于将由正弦和余弦波发生器产生的进入正弦和余弦波转换成正弦和余弦波发生器的模数转换器, 数字值。 算术单元用于根据来自模数转换器的数字值计算包括偏移,幅度和相位误差的误差补偿。 在该装置中,运算单元以相位角为基础进行工作,所述相位角由在所述误差补偿之前或期间执行的运算所得到的相位角以及来自模 - 数转换器的数字值进行运算,从而获得低价高可靠绝对位置 可以在不向硬件添加补偿电路的情况下实现检测装置。

    Contact detecting method and an apparatus for the same
    4.
    发明授权
    Contact detecting method and an apparatus for the same 失效
    接触检测方法及其装置

    公开(公告)号:US06233497B1

    公开(公告)日:2001-05-15

    申请号:US09153889

    申请日:1998-09-16

    IPC分类号: G06F1900

    摘要: Under the conditions that the tool is movable in an X-axial direction for approaching a work W and in a Y-axial direction perpendicular to the X-axial direction, the tool is moved at a specified speed in the X-axial direction to make the tool approach a work W and at the same time the tool is reciprocally moved at a specified frequency and a specified amplitude to detect a load fluctuation component for the tool in the X-axial direction during movement of the tool, and contact between the tool and the work W is detected according to this load fluctuation component.

    摘要翻译: 在工具能够在X轴方向上移动以接近工件W和与X轴方向垂直的Y轴方向的工具的情况下,以X轴方向的规定速度移动工具, 工具接近工件W,同时刀具以指定的频率和指定的幅度往复移动,以在工具运动期间检测刀具在X轴方向上的负载波动分量,并且在刀具之间接触 并且根据该负载波动分量来检测作业W.

    Position control system and position control method thereof
    6.
    发明授权
    Position control system and position control method thereof 失效
    位置控制系统及其位置控制方法

    公开(公告)号:US5589748A

    公开(公告)日:1996-12-31

    申请号:US208480

    申请日:1994-03-10

    摘要: A position control system for feeding back position information detected by position detection means for detecting the position of a machine movable part, is disclosed. The system includes a second order system position control loop formed by providing an internal second control loop. By adequately setting the internal control loop gain, a high response and stable control loop and also smooth response waveform can be obtained, thus ensuring vibration-free operation of the machine.

    摘要翻译: 公开了一种用于反馈由位置检测装置检测的位置信息的位置控制系统,用于检测机器可移动部件的位置。 该系统包括通过提供内部第二控制回路而形成的二阶系统位置控制回路。 通过适当设置内部控制环路增益,可以获得高响应和稳定的控制回路以及平滑的响应波形,从而确保机器的无振动运行。

    Inverter apparatus and inverter controlling method having fault
protection
    7.
    发明授权
    Inverter apparatus and inverter controlling method having fault protection 失效
    具有故障保护功能的变频器和逆变器控制方法

    公开(公告)号:US5430636A

    公开(公告)日:1995-07-04

    申请号:US8179

    申请日:1993-01-25

    申请人: Mitsuyasu Kachi

    发明人: Mitsuyasu Kachi

    CPC分类号: H02M7/48 H02H7/1222 H02H3/445

    摘要: An inverter apparatus and an inverter controlling method for judging a P-N impedance fault, a ground fault or a transistor fault by respective predetermined judging circuits according to either a voltage developed across a smoothing capacitor or the rate of change in the voltage while the smoothing capacitor is being charged. The charging of the capacitor is carried out via a resistor circuit or before the resistor circuit is short-circuited by a relay.

    摘要翻译: 一种逆变器装置和逆变器控制方法,用于根据平滑电容器产生的电压或平滑电容器的电压变化率来判定各个预定的判断电路的PN阻抗故障,接地故障或晶体管故障, 被控。 电容器的充电通过电阻电路或在继电器短路电阻之前进行。

    Method for detecting contact position
    9.
    发明授权
    Method for detecting contact position 有权
    检测接触位置的方法

    公开(公告)号:US6008612A

    公开(公告)日:1999-12-28

    申请号:US182207

    申请日:1998-10-30

    IPC分类号: G05D3/12 G05B1/06

    摘要: A movable body is moved towards an object for contact, it is determined whether a representative load for driving load such as a current instruction value for a servo amplifier providing controls for movement of the movable body has exceeded a reference value or not, and when the current instruction value exceeds the reference value, positional data for the body at this point of time is written in a memory, difference between the current instruction value and the reference value at this point of time and on is accumulated, and when the accumulated difference value reaches a specified value, a position indicated by the positional data in the memory is regarded as a contact position.

    摘要翻译: 移动体朝向接触物体移动时,确定用于驱动负载的代表性负载,例如提供用于移动体的移动的控制的伺服放大器的当前指令值是否已经超过参考值,并且当 当前指令值超过参考值时,在该时间点的身体的位置数据被写入存储器中,累积当前指令值与该时间点和开启时的基准值之间的差异,并且当累加的差值 达到指定值时,由存储器中的位置数据指示的位置被认为是接触位置。